Yahoo on Wednesday finally fully acknowledged on Twitter and on the service’s personal blog that its Yahoo Mail service is experiencing issues which some of its customers had to face for more than two weeks, ZDNet reports. According to the company, an unknown number of users were not able to send and receive emails since November 25. Similar problems for other Yahoo Mail customers started on Monday, although the company only briefly mentioned these issues via Twitter a day later. “We know some of our users are unable to use Yahoo Mail,” the Yahoo Mail team wrote on December 10. “We’re on it and trying to restore access in a few hours. Sorry for the inconvenience.” However, the service issue